Truck cab



FIG. 1 is a perspective view of a truck cab showing my new design.

FIG. 2 is a front view thereof.

FIG. 3 is a left side view thereof.

FIG. 4 is a right side view thereof; and,

FIG. 5 is a top view thereof.

The broken lines and de-emphasized portions shown within the broken lines are for the purpose of illustrating portions of the truck cab and form no part of the claimed design. 

CLAIM The ornamental design for a truck cab, as shown and described. 